代谢
萘丁美酮通过醛酮还原酶1C家族和皮质类固醇11-β-脱氢酶还原为3-羟基萘丁美酮。然后,它通过CYP1A2的氧化裂解转化为6-MNA,即活性代谢物。6-MNA通过CYP2C9的O-去甲基化转化为6-羟基-2-萘乙酸(6-HNA)。6-MNA和6-HNA都进一步转化为结合物。其他代谢物通过酮还原和O-去甲基化的混合途径以及随后的结合作用生成。已经发现几种代谢物的葡萄糖苷酸结合物会进一步与甘氨酸残基结合。
Nabumetone is reduced to 3-hydroxy nabumetone by the aldo-keto reductase-1C family and by corticosteroid 11-beta-dehydrogenase. It then undergoes oxidative cleavage by CYP1A2 to 6-MNA, the active metabolite. 6-MNA is eliminated by O-demethylation by CYP2C9 to 6-hydroxy-2-naphthylacetic acid (6-HNA). Both 6-MNA and 6-HNA are further converted to conjugates. Other metabolites are generated through a mix of ketone reduction and O-demethylation along with subsequent conjugation. Glucuronide conjugates of several metabolites have been found to become further conjugated to glycine residues.
来源:DrugBank